Lock



E. E. HALPEN.

LOCK.

APPLICATION HLED OCT-115. |919.

Pawnted Feb. 8; 1921.

UNlrsn srarss EDWARD E. HALPEN, OF LOS ANGELES, CALIFRNIA,

ILSSIGNOR OF ONE-HALFTO A GRANT WEISER, OF LGS ANGELES, CALFORNIA.

LUCK.

Specification oi' Letters Patent.

Patented Feb. 8., 1921.

Application led October 15,1919. Serial No. 330,691.

To all whom t may concern:

Be it known that l, EDWARD E. HALPEN, a citizen ot the United States, residing at Los Angeles, in the county or Los Angeles, State of California, have invented new and useful Improvements in Locksa of which the iollowing is a specification.

rThis invention relates to locks and particularly to locks suoh as are used on doors of various kinds. vention to provide a simple and effective door lock having a single rbolt with manually operated means on the inside and key operated means on the outside .for clogging or positively locking` the bolt.`

A particular feature of the invention is the simple and inexpensive construction which is employed in the lock. rEhe mechanism by which'the lock bolt is positively locked is particularly simple and eiiective. When thepositive locking means is set or thrown so as to'lockythe bolt the bolt is rigidly and solidly held in the lock position and is not dependent upon a spring or any resilient means.

Further objects and features oi the invention will be readily understood from the following detailed description of a typical embodiment of the invention throughout which reierenoeis had to the accompanying drawings is which- Figure 1 is an interior face view of my improved lock showing the positive locking mechanism in the released position; Fig. 2 is a View similar to Fig. 1 showingl the positive locking' mechanism in the set or look position;l Fig. 3 is a section takenv as indicated by line 8-3 on Fig. 1; and'llig. e is a section taken as indicated by line Ll--Ll on Fig. l.

Throughout the drawings numeral 10 designates the mechanism casing which may be of the Vtype commonly used in locks ot this character. The latch boltllis preterably of thetype commonly used in door locks and is carriedin an aperture 12 in the front wall of the case 10. The inner portion of the-bolt ll'torms a shoulder 13 from which a guide rod 14; `entends inwardly in the casing 10. The rodi 1li is carried or guided by a lug or projection 15 which eX- tends intothe casing 1() from one ot its wallsf A suitable spring 16 is provided in connection with the rod 111 between the shoulder-13' andthe lugl to normally kee It is an object of the inthe bolt 11 in the out position, as shown in the drawings'. lfhe lock is provided with a block 17 which is adapted to be moved bya lever 18 one end oi which extends from the front of the door and is adapted to be moved or operated manually. An ordinary type of swivel 19 is also provided in the lock into which a rod 20 entends from a knob on the inside of the door. An arm 21 is pivotally mounted at 22 in the casing'l() and is arranged so as to engage the tail piece 23 which is mounted on the end ot rod 14;. The

arm 21 is provided with a suitable projec- Y tion 24- which engages the block 17 and a lug 25 extends from the swivel 19 so as to enthe arm 2l, as clearly shown in the drawings. Upward movement of the block 17 (caused by the movement oi lever 18) or rotation of swivel 19 `in the direction indicated bythe arrow in Fig. 1, willl cause movement oi the arm 21 in the direction indicated by the arrow in Fig. 1, and due to the engagement of the tail piece 28 by the arm 21 will cause withdrawal lor drawing in ofthe bolt 11. Operation 'ci' the inside knob or the swivel 19 will always cause withdrawal oi the bolt 11, unless the bolt is positively locked as willk bey hereinafter eX- plained, and the operation of the lever. 18 will always cause withdrawal of the bolt unless the pin 26 is in position to engage lugs 27 which entends Vfrom block 17 as shown in Fig. 2. The pin 26 is out oi engagement with the lug 27 when it is in the position shown in Fig. 1 and it is moved to this po sition by moving; pin 28 from the position shown in 2 to theposition shown in 1i. The pins 25 and 28 are connected by a connecting link 29. The mechanism so tar described is theordinary type commonly used in looks of this .general 'character and it will be understood'thatthe invention is notV in any way limited to such Va form of mechanism but may be advantageously arranged vin connection with various other mechanisms. A

From the above description itV will be understood'how thebolt 11 is locked in the out position when the'pinl 26 is in engagement with the lug27 and that it can not be Y withdrawn by movement of thek lever 18 although it can be opened or moved by movement of the swivel'19. Although the mechanism 'for withdrawingr the bolt 11 by movement of lever 18` can be positivelyl looked by pin 26 the bolt itself is entirely dependent upon spring 16 to hold or keep it 1n the out or lockingposition. A door locked in. this manner is secure enough'or certain situations but it is not secure enough for circumstances or conditions which demand that the door be iirmly and positively locked.

A dog 30 having arms 31 and 32 is pivot-- ally mounted on a pin 33 which is carried by the casing 10. The dog 30 is so shaped and arranged that when the bolt 11 is in the out or lock position it can be moved or thrown so that the arm 3l engages the shoulder 13 of the bolt and the arm 32 engages the lug 15 which extends from the casing 10. When the dog is in this position it will be readily understood how it positively andiirmly holds the bolt 11 in the out position and that the bolt Vis no longer dependent upon the spring 16 to hold V*it in the locked position. When the dog` 30 is between the shoulder 13 and the lug` 1.5 any pressure on the bolt tending to push it in is directly transmitted to the stationary lug 15. Fig. 2 shows the dog in position to positively lock the bolt 11 while Fig. 1 shows v it moved or thrown to a position where it does not engage the bolt and does not intertere with its movement or action in any way.

The dog 30 may be moved or controlled from the inside of the door by a thumb turn or small knob 40 which is arranged in connection with a swivel 41. An arm 42 extends from the swivel 41 and is connected to the dog 30 by means oi connecting rod 43. The connecting rod 43 is pivotally connected to a pin 44 which extends from the dog 30 and has a pin 45 extending from it on which is pivotally carried the arm 42. The various connections throughout the mechanism and particularly the connection between the arm 42 and the-pivot pin 45 are made comparatively loose to prevent binding or sticking oi the parts when the mechanism is being operated. rlhe connecting rod 43 is provided with a projection 50 which is adapted to engage the tail piece 23 so that rotation of the knob 40 to cause movement of the connecting rod in the direction indicated by the arrow in F ig. 1 will cause the bolt 11 to be withdrawn into the casing 10. The dog 30may be moved or operated from the outside of the door by rotating a block 60, which is carried in a drum 6l, when a suitable key 62 is placed in the block 60 so as to cause tumblers 63, which are in the drums 61, to be :in position to release the block 60. This particular locking mechanism is merely typical and it will be understood that any suitable locking mechanism could be advantageously used in this connection. An arm 65'extends from block 60 and engages pin 45 on either side to cause movement of they pin in either direction. In this purpose the block 60 and arm 65 are rotatable movements as are caused by the turning of member 40. In order to holdV the dog 30 in the locking position and prevent it from being` moved by jarring or vibration a suitable spring is arranged in connection with the arm 32 of the dog, as clearly shown in Figs. 1 and 2. It will be particularly noted in the drawings that the spring 70 is arranged in the casing so as to engage the projection 15 when the dog is out of engagement with the bolt and thatit does not interfere in any way with the withdrawal or retraction of the bolt.

Having described a typical embodiment of the invention lf do not wish to limit myselrn to the particular details herein above set forth but wish to reserve to myself any changes or variations that may appear to those skilled in the art or fall within the scope oi the following claims.

Having described a preferred form of my invention, I claim: l

1. In a lock of the character described, a casing having a projection, a latch bolt carried by the casing, and manually operated means for positively locking the bolt, said means embodying a pivoted member adapted to be thrown into engagement with the bolt and the projection so that pressure on the bolt is transmitted directly to the projection through the pivoted member.

2. In a lock of the character described, a casing having a projection, af latch bolt carried by the casing, manually operated means for positively locking the bolt, said means embodying a pivoted member adapted to be thrown into engagement with the bolt Vand the projection so that pressure on the bolt is transmitted directly to .the projection through the pivoted member, and means for holding the pivoted member in engagement with the bolt and projection.

3. In a lock of the character described, a casing having a projection, a latch bolt carried bythe casing, and manually operated means Jfor positively locking the bolt, said means'embodying, a pivoted member adapted to be thrown into engagement with the bolt and the projection so that pressure on the bolt is transmitted directly'to the projection through the pivoted member, and a-link in connection with the pivoted member, the link being adapted to bemovedrso as to cause throwing` of the pivoted member.

the bolt is transmitted directly to the projection through the pivoted member, and a link in connection with the pivoted member, the link being adapted to be moved so as to cause throwing of the pivoted member, and means for holding the positive locking means in the locked position, said means embodying a spring arranged in connection with the pivotal member.

5. In a lock of the character described, a casing having a projection, a latch bolt carried by the casing, and manually operated means for positively locking the bolt, said means embodying, a pivoted member adapted to be thrown into engagement with the bolt and the projection so that pressure on the bolt is transmitted directly to the projection through the pivoted member, and an operating link in connection with the pivoted member, and means on the link arranged in relation with the bolt so that it cap be moved to cause withdrawal of the bo t.

6. In a lock of the character described, a casing having a projection, a latch bolt carried by the casing, the bolt having an eX- tended portion, and manually operated means Jfor positively locking the bolt, said means embodying, a pivoted member adapted to be thrown into engagementwith the bolt and the projection so that pressure on the bolt is transmitted directly to the projection through the pivoted member, and a link in connection with the pivoted member, the link being adapted to be moved to cause throwing of the pivoted member, the link being arranged in connection vwith the eX- tended portion of the bolt so that it can be moved to cause withdrawal of the bolt.

7. In a lock, the combination of a case, a spring projected latch bolt, knob operated means on one side of the case to retract the bolt, a thumb latch means on the other side of the case to retract the bolt; and means operated by a key on said last mentioned side of the lock and by a thumb turn on the other side of the lock to retract the bolt or to positively lock the bolt in the projected position, said last mentioned means comprising a dog adapted to be thrown into engagement with the bolt to positively'lock the bolt, and a member in connection with the dog adapted to be moved into engagement with the bolt to withdraw it when the dog is out of engagement with the bolt, and means :tor holding the dog in engagement with the bolt, said means comprising a spring adapted to engage and hold the dog only when it is in engagement with the bolt.

8. In a lock, the combination of a case, a spring projected latch bolt, knob operated means on one side of the case to retract the bolt, a thumb latch means on the other side of the case to retract the bolt; and means operated by a key on said last mentioned side of the lock and byv a thumb turn on the other side of the lock to retract the bolt or to positively lock the bolt in the projected position, said last mentioned means compris ing a pivoted' dog adapted to be thrown into engagement with the bolt to positively lock the bolt, and a link pivotally connected to the dog adapted to throw the dog into engagement with the bolt and be moved into engagement with the bolt to withdraw it, the link being adapted to be moved by the key or the thumb turn.

9. In a lock of the character described, a casing, a latch bolt therein, means for operating and for positively locking said bolt embodying a pivoted dog adapted to be thrown behind the bolt, a link pivoted at one end tothe dog, a projection on the bolt, and means to move the other end of the link against said projection whereby to operate Y engaging the dog to hold it in its bolt dogging position and engaging the dog only when in that position.

In witness that I claim the foregoing I have hereunto subscribed my name this 1st day of October, 1919.

EDWARD E. HALPEN. Witness:

VIRGINIA I. BERINGER. 

